CN202119697U - Transition sleeve for core analysis and testing - Google Patents
Transition sleeve for core analysis and testing Download PDFInfo
- Publication number
- CN202119697U CN202119697U CN2011201527061U CN201120152706U CN202119697U CN 202119697 U CN202119697 U CN 202119697U CN 2011201527061 U CN2011201527061 U CN 2011201527061U CN 201120152706 U CN201120152706 U CN 201120152706U CN 202119697 U CN202119697 U CN 202119697U
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- testing
- transition sleeve
- sleeve
- rock sample
- permeability
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Abstract
The utility model provides a transition sleeve for core analysis and testing and relates to the technical field of core testing. The transition sleeve for the core analysis and testing is of an axial through cylinder structure, wherein the cross section of a through hole at the center of the cylinder is polygonal; the central axis of the through hole and the central axis of the cylinder are coincident; the transition sleeve is made of rubber; physical parameters such as elasticity, strength and the like of the transition sleeve are same as or similar to those of a conventional confining pressure sleeve to ensure that a rock sample can be tightly wrapped by the transition sleeve under the action of pressure; and the transition sleeve can be combined with the existing cylindrical rock sample holder or the confining pressure sleeve to ensure that cube and cuboid rock samples with various sizes can be put in the existing cylindrical rock sample holder or the confining pressure sleeve, and the testing of parameters such as permeability, permeability under an overburden pressure, diffusion coefficient and the like can be carried out after pressure seal.
Description
Technical field
The utility model relates to the core test technology of geological exploration field, says further, relates to the spacer shell that a kind of core test is used.
Background technology
In fields such as oil-gas geology coal field geologies, more and more for the core analysis test job amount of mud stone, mud shale, but existing working method and method are difficult to satisfy the demand.Cylindric rock core (rock sample) clamper and the confined pressure cover of existing various sizes; Rock sample after requiring to process must be columned; Usually mainly be to utilize various drilling machines, drill through cylindric sample, with the requirement of the cylindric rock sample clamper that adapts to various sizes and confined pressure cover.But because fracture phenomena often takes place in the drilling operation characteristics such as mud stone, having property of mud shale are crisp, laminated structure of shale growth, cause the current success ratio that drills through cylindric sample low, can not satisfy need of work.
The single cylinder-like structure of confined pressure cover in the prior art; Limited the shape of core sample; Can only be for rule cylindric; And cylindric sample sampling difficulty makes samples such as a large amount of mud stone, mud shale, resinous shale can not carry out permeability, cover and depress permeability and the isoparametric test of coefficient of diffusion.
Chinese patent ZL02206662.4 (CN2551990Y) discloses reducing transition block in a kind of core holding unit, is installed between core sample and the clamper plug.It is characterized in that described transition block is the circular metal piece, and offer a through hole in the axle center, 4 kinds of shapes are arranged, for example, transition block is that an end is major diameter, and the other end is the stepped appearance of minor diameter, or the like.Solved when the rock sample size allows specification less than core holding unit, the mensuration problem of permeability has been widened core permeability sample detection scope.But this reducing transition block is the circular metal piece, and the sample proper testing problem of can only solution rule cylindrical shape diameter little, axial weak point can not satisfy the needs that non-cylinder rock sample permeability etc. is measured.
Summary of the invention
To the problems of the prior art, the utility model purpose provides a kind of core analysis test and uses spacer shell.It can break through rock sample can only be the columned limitation of rule, makes more sample can carry out the isoparametric test of permeability, satisfies the geology requirements of one's work better.
Spacer shell is used in the core analysis test of the utility model, is an axial penetrating cylindrical structure.The xsect of the through hole of this cylinder center is a polygon, but its central axis should with the central axes of cylinder.Preferred rhombus of said polygon or rectangle, said rectangle comprises square, rectangle.
Described spacer shell adopts the material preferred rubber, and is identical or close with the existing physical parameters such as elasticity, intensity of overlapping with confined pressure, guarantees that it behind the parcel sample, packs tightly rock sample under the effect of pressure.So just can cube, the rectangular parallelepiped rock sample of various sizes be put into wherein.Core analysis that the utility model provides test with spacer shell be can with at present with cylindric rock sample clamper or show and overlap supporting use with confined pressure.It is put into current cylindric rock sample clamper or confined pressure cover,, carry out permeability and the isoparametric test of coefficient of diffusion under permeability, the confined pressure through pressurization.
Need to prove that the application of the spacer shell of the utility model comprises the situation of two aspects at least, the one, directly apply to existing core holding unit, the spacer shell that is about to this round outside but spuare inside structure of the utility model directly uses as the confined pressure cover of clamper; The 2nd, be applied to used confined pressure cover, as a spacer shell, can put at present and overlap with confined pressure with round outside but spuare inside structure, size match is convenient to pressurization.
The core analysis test of the utility model is applied to the geological exploration and development field with the round outside but spuare inside structural design of this uniqueness of spacer shell, can reach following technology, economic effect.The one, make rectangular parallelepiped, cube, polyhedron-shaped rock sample can carry out permeability and the isoparametric test of coefficient of diffusion under permeability, the confined pressure as cylindrical rock sample; This is a kind of liberation for the rock sample sampling mode; Success ratio with improving sampling greatly satisfies the analytical test requirements of one's work better; The 2nd, the application of this confined pressure cover; To reach the effect of " equally dual-purpose "; Promptly a sample both can have been done permeability and the isoparametric test of coefficient of diffusion under axial (vertical) permeability, the confined pressure; Can do radially permeability and the isoparametric test of coefficient of diffusion under (laterally) permeability, the confined pressure again, thereby, the utilization factor of raising sample.
Description of drawings
The core analysis test of Fig. 1 the utility model is with the schematic perspective view of spacer shell structure.
The core analysis test of Fig. 2 the utility model is with the vertical view of spacer shell structure.
Embodiment:
Below in conjunction with embodiment, further specify the utility model.
As illustrated in figs. 1 and 2, it is an axial penetrating cylindrical structure that spacer shell is used in the core analysis test of the utility model.The xsect of the through hole 2 at this cylinder 1 center is a square, the central axes of its central axis and cylinder 2.
It is rubber that described spacer shell adopts material, guarantees that it behind the parcel sample, packs tightly rock sample under the effect of pressure.Can cube, rectangular parallelepiped, the polyhedron rock sample of various sizes be put into the through hole 2 of the utility model spacer shell thus.
Core analysis that the utility model provides test with spacer shell be can with at present with cylindric rock sample clamper or show and overlap supporting use with confined pressure.It is put into current cylindric rock sample clamper or confined pressure cover,, carry out permeability and the isoparametric test of coefficient of diffusion under permeability, the confined pressure through pressurization.
Claims (2)
1. spacer shell is used in a core analysis test, is an axial penetrating cylindrical structure, it is characterized in that the xsect of the through hole (2) at said cylinder (1) center is a polygon, the central axes of its central axis and cylinder (1).
2. spacer shell is used in core analysis test according to claim 1, and the polygon that it is characterized in that the xsect of said through hole (2) is rhombus or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201527061U CN202119697U (en) | 2011-05-13 | 2011-05-13 | Transition sleeve for core analysis and testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201527061U CN202119697U (en) | 2011-05-13 | 2011-05-13 | Transition sleeve for core analysis and testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202119697U true CN202119697U (en) | 2012-01-18 |
Family
ID=45460752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201527061U Expired - Lifetime CN202119697U (en) | 2011-05-13 | 2011-05-13 | Transition sleeve for core analysis and testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202119697U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644921A (en) * | 2016-10-26 | 2017-05-10 | 东北石油大学 | A rock core clamper used for carbon dioxide corrosion tests |
| CN106680106A (en) * | 2017-01-06 | 2017-05-17 | 中国石油大学(华东) | Simulation experiment device and method for mudstone and drilling liquid interaction under stratum conditions |
| US10724317B2 (en) | 2015-07-10 | 2020-07-28 | Halliburton Energy Services, Inc. | Sealed core storage and testing device for a downhole tool |
| CN112763391A (en) * | 2020-12-28 | 2021-05-07 | 中国科学院武汉岩土力学研究所 | Variable-diameter core holder |
-
2011
- 2011-05-13 CN CN2011201527061U patent/CN202119697U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10724317B2 (en) | 2015-07-10 | 2020-07-28 | Halliburton Energy Services, Inc. | Sealed core storage and testing device for a downhole tool |
| CN106644921A (en) * | 2016-10-26 | 2017-05-10 | 东北石油大学 | A rock core clamper used for carbon dioxide corrosion tests |
| CN106680106A (en) * | 2017-01-06 | 2017-05-17 | 中国石油大学(华东) | Simulation experiment device and method for mudstone and drilling liquid interaction under stratum conditions |
| CN112763391A (en) * | 2020-12-28 | 2021-05-07 | 中国科学院武汉岩土力学研究所 | Variable-diameter core holder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120118 |
|
| CX01 | Expiry of patent term |